Improvement in photographic screens and reflectors



H. HAMMENSTEDE.

Photographic Screens and Reflectors. No.155944', Patented Oct. 13, 1874.

UNITED STATES PATENT 0FFICE i HENRY HAMMENSTEDE, OF NEW YORK, N. Y.

IMPROVEMENT IN PHOTOGRAPHIC SCREENS AND REFLECTORS.

Specification forming part of Letters Patent No. l 55,944, dated October 13, 1874; application filed September 9, 1874.

T r all whom 'it may concern:

Be it known that I, HENRY HAMMENsTEDE, of New York, in the State of New York, have invented a new and improved Light-Conde sator, of which the following is a specification:

The nature of my invention consists in the combination of two hollowT reflectors, one above the other, capable of turning on suitable centers, so constructed that the light is concentrated in the upper reiector at any particular point, while the shadows are modified or lessened by the position of the lower reliector.

The accompanying drawing represents a front View of a light-condensator embodying my invention.

A is a concave reflector, about tive feet in diameter and ten feet focus, hung in a suitable frame, O, on centers c o, which enables said reliector to be placed in the desired position to concentrate the light in any place. This frame G is attached, by means of a screw, n, to another frame, D, in such a manner as to be capable of turning around said screw a. In the lower frame D a hollow reflector, B, is hung on screws w w.

The reiiectors A and B can be made of any light material, such as wood or pasteboard, and lined with tin-foil. The reflector B Iprefer to make about three feet high and of twen ty feet radius.

This light-condensator is particularly intended for the use of photographers. When a portrait is to be taken, the apparatus is placed from seven to eight feet from the person. The light is concentrated by the upper reflector A on the face of the person, while the shadows are modified or lessened by the position of the lower reiiector B.

What I claim as my invention, and desire to secure by Letters Patent, is-

In a photographic screen and reflector, the combination of a concave reiiector, A, supported in a frame, C, and turning on a central pin, n, with a segmental pivoted reflector, B, supported on the lower frame D, all arranged in the manner and for the purpose substantially as set forth.

HENRY HAMMENSTEDE.

Witnesses:

HENRY E. ROEDEE, E. SGHULEE. 

